Go-Ahead Ireland Route L27: Dun Laoghaire Stn - Leopardstown Valley

Bus timetable and route map · Monday to Friday, Saturday, Sunday

Go-Ahead Ireland Route L27 (Dun Laoghaire Stn - Leopardstown Valley) is a bus route in the Dublin suburbs and commuter towns, serving Dun Laoghaire Stn, Tivoli Terrace Sth, Cornelscourt SC, Brennanstown Road and York Road. Monday to Friday the first bus is at 05:45 and the last at 23:30, every 30 min during the day. Updated 4 October 2026.

Timetable summary

Monday to Friday

First: 05:45
Last: 23:30
Buses: 72
Daytime: every 30 min

Saturday

First: 05:45
Last: 23:25
Buses: 66
Daytime: every 30 min

Sunday

First: 06:40
Last: 22:55
Buses: 60
Daytime: every 30 min

Timetable change: Go-Ahead Ireland’s timetable changes on 24 October 2026. The times below are for the current timetable.

Route L27 to Leopardstown Valley

Destination sign “Leopardstown Valley” · from Dun Laoghaire Stn · 33 stops

Monday to Friday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

Dun Laoghaire Stn	Tivoli Terrace Sth	Oliver Plunkett Ave	Mackintosh Park	Cornelscourt SC	Glenamuck Rd North	Leopardstown Valley
05:45	05:51	05:56	06:02	06:10	06:14	06:22
06:15	06:21	06:26	06:32	06:40	06:44	06:52
06:45	06:53	06:58	07:04	07:14	07:19	07:28
07:15	07:23	07:28	07:37	07:49	07:55	08:06
07:45	07:53	07:58	08:06	08:20	08:25	08:36
08:15	08:23	08:27	08:35	08:47	08:51	09:01
08:45	08:53	08:57	09:04	09:16	09:20	09:28
09:15	09:23	09:28	09:36	09:45	09:50	09:58
09:45	09:53	09:58	10:06	10:15	10:20	10:28
10:15	10:23	10:28	10:36	10:45	10:50	10:58
10:45	10:53	10:58	11:06	11:15	11:20	11:28
11:15	11:23	11:28	11:36	11:45	11:50	11:58
11:45	11:54	11:59	12:07	12:18	12:23	12:32
12:15	12:24	12:29	12:37	12:48	12:53	13:02
12:45	12:54	12:59	13:07	13:18	13:23	13:32
13:15	13:24	13:29	13:37	13:48	13:53	14:02
13:45	13:54	13:59	14:07	14:18	14:23	14:32
14:15	14:24	14:29	14:37	14:50	14:55	15:06
14:45	14:54	14:59	15:07	15:20	15:25	15:36
15:15	15:24	15:29	15:37	15:50	15:55	16:06
15:45	15:55	16:00	16:09	16:21	16:26	16:38
16:15	16:25	16:30	16:39	16:51	16:56	17:08
16:45	16:55	17:00	17:09	17:21	17:26	17:38
17:15	17:24	17:29	17:38	17:49	17:54	18:05
17:45	17:54	17:59	18:08	18:17	18:22	18:32
18:15	18:25	18:30	18:38	18:48	18:53	19:02
18:45	18:54	18:59	19:05	19:16	19:20	19:28
19:15	19:24	19:29	19:35	19:46	19:50	19:58
19:45	19:54	19:59	20:05	20:16	20:20	20:28
20:15	20:23	20:28	20:34	20:42	20:46	20:54
20:45	20:53	20:58	21:04	21:12	21:16	21:24
21:15	21:22	21:27	21:33	21:40	21:44	21:52
21:45	21:52	21:57	22:03	22:10	22:14	22:22
22:15	22:22	22:27	22:32	22:39	22:43	22:50
22:45	22:52	22:57	23:02	23:09	23:13	23:20
23:15	23:20	23:25	23:30	23:37	23:41	23:47

Saturday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

Dun Laoghaire Stn	Tivoli Terrace Sth	Oliver Plunkett Ave	Mackintosh Park	Cornelscourt SC	Glenamuck Rd North	Leopardstown Valley
05:45	05:50	05:55	06:00	06:07	06:12	06:20
06:45	06:50	06:55	07:00	07:07	07:12	07:20
07:45	07:52	07:57	08:03	08:11	08:15	08:22
08:45	08:54	08:59	09:05	09:13	09:17	09:25
09:15	09:24	09:29	09:35	09:43	09:47	09:55
09:45	09:54	09:59	10:05	10:13	10:17	10:25
10:15	10:24	10:29	10:36	10:46	10:51	11:00
10:45	10:54	10:59	11:06	11:16	11:21	11:30
11:15	11:23	11:28	11:35	11:48	11:53	12:03
11:45	11:53	11:58	12:05	12:18	12:23	12:33
12:15	12:23	12:28	12:35	12:48	12:53	13:03
12:45	12:53	12:58	13:05	13:18	13:23	13:33
13:15	13:23	13:28	13:35	13:47	13:51	14:01
13:45	13:53	13:58	14:05	14:17	14:21	14:31
14:15	14:23	14:28	14:35	14:47	14:51	15:01
14:45	14:53	14:58	15:05	15:17	15:21	15:31
15:15	15:23	15:28	15:35	15:47	15:51	16:01
15:45	15:53	15:58	16:05	16:17	16:21	16:31
16:15	16:23	16:28	16:35	16:47	16:51	17:01
16:45	16:53	16:58	17:05	17:17	17:21	17:31
17:15	17:23	17:28	17:35	17:47	17:51	18:01
17:45	17:53	17:58	18:05	18:17	18:21	18:31
18:15	18:23	18:28	18:33	18:42	18:47	18:56
18:45	18:53	18:58	19:03	19:12	19:17	19:26
19:15	19:23	19:28	19:33	19:42	19:47	19:56
19:45	19:53	19:58	20:03	20:12	20:17	20:26
20:15	20:23	20:28	20:33	20:42	20:47	20:56
20:45	20:52	20:57	21:02	21:11	21:16	21:23
21:15	21:22	21:27	21:33	21:41	21:45	21:52
21:45	21:52	21:57	22:03	22:11	22:15	22:22
22:15	22:22	22:27	22:32	22:39	22:43	22:50
22:45	22:52	22:57	23:02	23:09	23:13	23:20
23:15	23:21	23:26	23:31	23:36	23:40	23:47

Sunday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

Dun Laoghaire Stn	Tivoli Terrace Sth	Oliver Plunkett Ave	Mackintosh Park	Cornelscourt SC	Glenamuck Rd North	Leopardstown Valley
06:40	06:46	06:51	06:57	07:05	07:09	07:15
07:45	07:51	07:56	08:02	08:10	08:14	08:20
08:45	08:51	08:56	09:02	09:10	09:14	09:20
09:45	09:51	09:56	10:02	10:11	10:15	10:23
10:15	10:21	10:26	10:32	10:41	10:45	10:53
10:45	10:52	10:57	11:03	11:12	11:15	11:24
11:15	11:24	11:29	11:35	11:44	11:49	11:58
11:45	11:54	11:59	12:05	12:14	12:19	12:28
12:15	12:24	12:29	12:35	12:44	12:49	12:58
12:45	12:54	12:59	13:06	13:16	13:21	13:31
13:15	13:26	13:31	13:38	13:48	13:53	14:03
13:45	13:54	13:59	14:06	14:16	14:21	14:31
14:15	14:24	14:29	14:36	14:46	14:51	15:01
14:45	14:54	14:59	15:06	15:16	15:21	15:31
15:15	15:24	15:29	15:36	15:46	15:51	16:01
15:45	15:54	15:59	16:06	16:16	16:21	16:31
16:15	16:24	16:29	16:36	16:46	16:51	17:01
16:45	16:54	16:59	17:06	17:16	17:21	17:31
17:15	17:24	17:29	17:36	17:46	17:51	18:01
17:45	17:54	17:59	18:06	18:16	18:21	18:31
18:15	18:24	18:29	18:36	18:44	18:49	18:58
18:45	18:54	18:59	19:06	19:14	19:19	19:28
19:15	19:24	19:29	19:36	19:44	19:49	19:58
19:45	19:53	19:58	20:02	20:10	20:14	20:22
20:15	20:23	20:28	20:32	20:40	20:44	20:52
20:45	20:53	20:58	21:02	21:10	21:14	21:22
21:15	21:23	21:28	21:32	21:40	21:44	21:52
21:45	21:51	21:55	21:59	22:06	22:10	22:17
22:15	22:21	22:25	22:29	22:36	22:40	22:47
22:45	22:51	22:55	22:59	23:06	23:10	23:17

All 33 stops in this direction

Route L27 to Dun Laoghaire Stn

Destination sign “Dun Laoghaire” · from Leopardstown Valley · 32 stops

Monday to Friday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

Leopardstown Valley	Brennanstown Road	Cornelscourt SC	Mackinstosh Park	Oliver Plunkett Ave	York Road	Dun Laoghaire Stn
06:00	06:07	06:11	06:18	06:26	06:30	06:35
06:30	06:37	06:41	06:48	06:56	07:00	07:05
07:00	07:09	07:15	07:24	07:33	07:37	07:42
07:30	07:41	07:47	08:00	08:13	08:19	08:28
08:00	08:11	08:17	08:30	08:43	08:49	08:58
08:30	08:46	08:52	09:02	09:12	09:18	09:26
09:00	09:10	09:16	09:23	09:32	09:36	09:45
09:30	09:40	09:46	09:53	10:02	10:06	10:15
10:00	10:08	10:14	10:22	10:30	10:36	10:42
10:30	10:38	10:44	10:52	11:00	11:06	11:12
11:00	11:09	11:15	11:23	11:31	11:36	11:45
11:30	11:39	11:45	11:53	12:01	12:06	12:15
12:00	12:09	12:15	12:23	12:31	12:36	12:45
12:30	12:39	12:45	12:53	13:01	13:06	13:15
13:00	13:09	13:15	13:23	13:31	13:36	13:45
13:30	13:39	13:45	13:53	14:01	14:06	14:15
14:00	14:09	14:15	14:23	14:31	14:36	14:45
14:30	14:39	14:45	14:53	15:01	15:06	15:15
15:00	15:10	15:16	15:26	15:37	15:44	15:51
15:30	15:40	15:46	15:56	16:07	16:14	16:21
16:00	16:10	16:16	16:26	16:37	16:44	16:51
16:30	16:40	16:46	16:54	17:05	17:12	17:19
17:00	17:10	17:16	17:26	17:37	17:44	17:51
17:30	17:40	17:46	17:54	18:02	18:09	18:17
18:00	18:10	18:16	18:24	18:32	18:39	18:47
18:30	18:38	18:44	18:52	19:00	19:06	19:12
19:00	19:08	19:14	19:22	19:30	19:36	19:42
19:30	19:38	19:44	19:52	20:00	20:06	20:12
20:00	20:10	20:16	20:22	20:29	20:34	20:39
20:30	20:40	20:46	20:52	20:59	21:04	21:09
21:00	21:10	21:16	21:22	21:29	21:34	21:39
21:30	21:37	21:43	21:49	21:56	22:01	22:05
22:00	22:07	22:13	22:19	22:26	22:31	22:35
22:30	22:37	22:42	22:48	22:54	22:58	23:02
23:00	23:07	23:12	23:18	23:24	23:28	23:32
23:30	23:37	23:42	23:48	23:54	23:58	00:02

Saturday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

Leopardstown Valley	Brennanstown Road	Cornelscourt SC	Mackinstosh Park	Oliver Plunkett Ave	York Road	Dun Laoghaire Stn
05:55	06:01	06:05	06:12	06:18	06:22	06:26
06:55	07:01	07:05	07:12	07:18	07:22	07:26
07:55	08:02	08:08	08:16	08:22	08:26	08:30
08:55	09:02	09:08	09:16	09:22	09:26	09:30
09:25	09:33	09:39	09:46	09:53	09:59	10:04
09:55	10:03	10:09	10:16	10:23	10:29	10:34
10:25	10:33	10:39	10:46	10:53	10:59	11:04
10:55	11:02	11:08	11:16	11:24	11:30	11:35
11:25	11:33	11:39	11:47	11:57	12:04	12:10
11:55	12:03	12:09	12:17	12:27	12:34	12:40
12:25	12:33	12:39	12:47	12:57	13:04	13:10
12:55	13:03	13:09	13:17	13:27	13:34	13:40
13:25	13:33	13:39	13:47	13:57	14:04	14:10
13:55	14:03	14:09	14:17	14:27	14:34	14:40
14:25	14:33	14:39	14:47	14:57	15:04	15:10
14:55	15:03	15:09	15:17	15:27	15:34	15:40
15:25	15:33	15:39	15:47	15:57	16:04	16:10
15:55	16:04	16:09	16:17	16:24	16:29	16:35
16:25	16:34	16:39	16:47	16:54	16:59	17:05
16:55	17:04	17:09	17:17	17:24	17:29	17:35
17:25	17:34	17:39	17:47	17:54	17:59	18:05
17:55	18:04	18:09	18:17	18:24	18:29	18:35
18:25	18:34	18:39	18:47	18:54	18:59	19:05
18:55	19:04	19:09	19:17	19:24	19:29	19:35
19:25	19:33	19:39	19:45	19:51	19:55	20:00
19:55	20:03	20:09	20:15	20:21	20:25	20:30
20:25	20:33	20:39	20:45	20:51	20:55	21:00
20:55	21:03	21:09	21:15	21:21	21:25	21:30
21:25	21:32	21:35	21:42	21:49	21:53	21:57
21:55	22:02	22:05	22:12	22:19	22:23	22:27
22:25	22:32	22:35	22:42	22:49	22:53	22:57
22:55	23:02	23:05	23:12	23:19	23:23	23:27
23:25	23:32	23:35	23:41	23:48	23:52	23:56

Sunday

Times at the main stops. 24-hour clock. A dot means that trip does not stop there.

Leopardstown Valley	Brennanstown Road	Cornelscourt SC	Mackinstosh Park	Oliver Plunkett Ave	York Road	Dun Laoghaire Stn
06:55	07:01	07:05	07:12	07:18	07:22	07:26
07:55	08:01	08:05	08:12	08:19	08:23	08:27
08:55	09:02	09:08	09:15	09:22	09:26	09:30
09:55	10:02	10:08	10:15	10:22	10:26	10:30
10:25	10:32	10:38	10:45	10:52	10:56	11:00
10:55	11:02	11:08	11:16	11:23	11:28	11:33
11:25	11:33	11:39	11:46	11:54	11:59	12:04
11:55	12:04	12:10	12:16	12:23	12:27	12:34
12:25	12:34	12:40	12:48	12:56	13:02	13:10
12:55	13:04	13:10	13:18	13:26	13:32	13:40
13:25	13:34	13:40	13:48	13:56	14:02	14:10
13:55	14:04	14:10	14:18	14:26	14:32	14:40
14:25	14:34	14:40	14:48	14:56	15:02	15:10
14:55	15:04	15:10	15:18	15:26	15:32	15:40
15:25	15:34	15:40	15:48	15:56	16:02	16:10
15:55	16:04	16:10	16:18	16:26	16:32	16:40
16:25	16:34	16:40	16:47	16:54	17:00	17:05
16:55	17:04	17:10	17:17	17:24	17:30	17:35
17:25	17:34	17:40	17:47	17:54	18:00	18:05
17:55	18:04	18:10	18:17	18:24	18:30	18:35
18:25	18:34	18:40	18:47	18:54	19:00	19:05
18:55	19:04	19:09	19:15	19:22	19:26	19:30
19:25	19:34	19:39	19:45	19:52	19:56	20:00
19:55	20:04	20:09	20:15	20:22	20:26	20:30
20:25	20:34	20:39	20:45	20:52	20:56	21:00
20:55	21:04	21:09	21:15	21:22	21:26	21:30
21:25	21:31	21:36	21:42	21:49	21:53	21:57
21:55	22:01	22:06	22:12	22:19	22:23	22:27
22:25	22:31	22:36	22:42	22:49	22:53	22:57
22:55	23:01	23:06	23:11	23:18	23:22	23:26

All 32 stops in this direction

Route L27 route map

Questions about Go-Ahead Ireland Route L27

What time is the first Route L27 bus?

Monday to Friday: 05:45. Saturday: 05:45. Sunday: 06:40.

What time is the last Route L27 bus?

Monday to Friday: 23:30. Saturday: 23:25. Sunday: 22:55. A time after midnight belongs to the evening before.

How often does Route L27 run?

Monday to Friday: every 30 min. Saturday: every 30 min. Sunday: every 30 min, between 07:00 and 19:00.

Does Route L27 run at weekends?

Saturday: yes. Sunday: yes.

Where does Route L27 go?

Route L27 serves Dun Laoghaire Stn, Tivoli Terrace Sth, Cornelscourt SC, Brennanstown Road and York Road. The full list of stops for each direction is below the timetables.

Are these live bus times?

No. They are the published timetable from National Transport Authority’s open data, refreshed 4 October 2026. A bus can run early or late, and disruptions are not shown.

Source: National Transport Authority open data (GTFS schedule for Go-Ahead Ireland), used under CC BY 4.0. Refreshed 4 October 2026; the current timetable runs to 3 October 2027. These are scheduled times; disruptions and service alerts are published by the operator. Changes made: times reformatted into timetables and departure lists.

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